body,
ul,
h1,
h2,
h3,
h4,
h5,
h6,
p {
  margin: 0;
  padding: 0;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  font-size: 100%;
  font-weight: normal;
}

a {
  text-decoration: none;
  /* 点击a标签显示透明色，不设置会显示蓝色 */
  -webkit-tap-highlight-color: transparent;
}

ul {
  list-style: none;
}

img {
  border: 0px;
}

/* 清除浮动，解决margin-top塌陷 */
.clearfix:before,
.clearfix:after {
  content: '';
  display: table;
}

.clearfix:after {
  clear: both;
}

.clearfix {
  zoom: 1;
}

.fl {
  float: left;
}

.fr {
  float: right;
}